Scientists in Germany have developed a “heavy duty” test to provide insight into the long term effects of potential induced degradation in PV modules. The tests go well beyond those established by IEC standards and seek to guide manufacturers and investors on the best choice of materials – encapsulants in particular – when it comes to long term PID resistance.
A new, non-destructive technique has been proposed by researchers who say identifying early-stage discoloration in EVA encapsulants can help detect degradation in solar panels before power output is affected. The IIT Bombay group used an ultraviolet accelerated aging test during 34 days on three encapsulant samples.
Compliance to revised IEC standards allows the ATUM roof with integrated solar panels to chart markets in over 50 countries.
Researchers at the American Institute of Physics have used the clear-sky irradiance model developed by the National Renewable Energy Laboratory to measure the degradation rates of solar panels at a testing field in Germany over five years. The scientists say the model, when combined with real-world data, offers an efficient tool to evaluate the aging of PV technology.
Dhaka has heeded complaints about Indian manufacturers allegedly dumping sub-standard PV products over the border and issued a requirement for modules, inverters, charge controllers and batteries to attain IEC electrical standards.
Visitors to this year’s Solar Bangladesh Expo have called for the implementation of quality standards on solar imports – action which the government is currently pursuing – with one industry insider rubbishing Indian-made products.
The disparity between central and state government renewables policies must be resolved and renegotiating signed PPAs is an absolute no-no, according to the solar business’ bosses.
The National Solar Energy Federation of India (NSEFI) is continuing to step up its efforts to ensure the quality of large scale solar projects. The body is now looking for stakeholder input into its new best practice guidelines for PV power plant projects, as a part of its ongoing Quality Taskforce initiative.
New analysis predicts more than 150 GW of tracker capacity will be installed in the next five years – around a third of all ground mount projects up to 2024. Rapid growth in Europe, the Middle East and Africa; and the better cost structures possible from combining trackers and bifacial modules are singled out as key trends.
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